Heating apparatus.



Nmsscza Patented Nov. I3, |900.

' H. J. wATTLEs.

HEATING APPARATUS. (Application led June 16, 1899.)

(un Model.)

MNE/w09 mmm JMW-Zes ATTORNEYS. Y

NITED STATES IIIRAM J. WATTLES, OF SYRACUSE, NEW YORK.

HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 661,629, dated November 13, 1900.

Application iild June 16, l899.` Lerial lic. 720.746. (No mcdcl.;

To @ZZ whom it may concern.'

Be it known that I, HIRAM J. WATTLES, of Syracuse, in the county ci Onondaga, in the State of New York, have invented new and useful Improvements in Heating Apparatus, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

My invention relates to heating apparatus; and my object is to produce an improved hot air, hot water, or steam heater or producer comprising a fire-box, a zigzag smoke-flue above the combustion-chamber, a chamber for hot air, water, or water and steam above the combustion-chamber subdivided by the passage of the members of the smoke-nue through it, each of these members having heating-surface substantially equal to the areas of the faces of the compartments of the air-chamber, these compartments being connected whereby the hot air will pass from one to another until it will finally enter a dis-- tributing-chamber within the inclosing casing, the cold air being fed into'V water-leg chambers, thence passing into like chambers on each side of the fire-box and across the top of the combustion-chamber, tubular bars extending through the bottom of the fire-box and serving either as grate-bars or to support grate bars and opening outwardly through the front of the casing and inwardly in the rear of the bridge-wall, their front open ends being adapted to be more or less closed or opened and shut by a slide, whereby when open they operate as a check-draft.

A door is provided to clean out the several` smoke-nues and causeV the soot, dac., to be collected in a chamber in the rear of the ashpit, whence they can be removed through a door into the ash-pit. It is constructed as follows, reference being had to theV accompanying drawings, in which- Figure 1 is a front elevation ofthe heater. Fig. 2 is a vertical cross-section thereof. Fig. 3 is a vertical longitudinal section thereof.

Upon a base vertical Walls 2 areerected connected by an arched top or crown-sheet, the walls constituting the sides of the ashpit 3, tire-box 4, and com bustion-chamber 5. A bridge-wall 6 and a bar 7 upon the front of the casing 8 constitute the support for the tubes 9, which serve either as grate-bars'or as a support for grate-bars 10, and a slide 11 operates to open or close their front ends to permit or shut oit or regulate a coldairdraft through them. There are three vertical parallel walls 2, 12, and 8, which are separated a suitable distance, the distance between the walls 2 and 12 being about double that between the walls S and 12. Between the Vertical walls 2 and 12, about on a level with the pipes 9, are perforated partitions 13, and below these partitions are air-chambers A, which are supplied with fresh air by the pipes 14, which have their inner ends to open into the chambers and their outer ends open to the outside atmosphere. The air upon entering the chambers A through the pipes 11 rises through the partitions 13 into the air-chamber l5 above, where it is still further heated by contact withthe vertical walls 2 of the lire-chamber'. At the top of the chamber 15 is a horizontal perforated partition 16, through which some ofthe heated air passes into the chamber 26. This partition extends only half-way across the top of the chamber 15,

while the remaining half of the chamber is open, so the'heated air which. does not pass through the partition 16 will pass into the chamber 25 above the top of the crownsheet a, and thus become highly heated. This chamber 25 is open at.its lower end to the chamber 15, so that when the air in this chamber 25 becomes highly heated a portion of .this air will pass through'the partition 1G into the chamber 26. The arch 17 forms the top of the chamber 25, and above this arch 17 is a second one 19, and between these two arches 17 and 19 is formed the smokeflue 20, which is open at the rear to the combustion-chamber and at the front to the second smoke-HueV member 2l, between the arches 22 and 23, which opens rearwardly into the smoke-pipe 24, (dotted lines.) In this manner three hot-air compartments 25, 26, and 27 are created by the intermediate smoke-nues, and these are connected by pipes 30, as shown by the dotted lines in Fig. 2, whereby the air from the pipes 14 is heated and conducted from one compartment to another into the compartment 27, whence it is distributed through as many pipes 28 as may be deemed advisable to the rooms to be heated. A door 29 permits access to the smoke-nues for cleaning the soot, &c., falling down into the chamber 30, whence it can be removed through the door 31 in the rear wall of the ash-pit. It will be seen that this dividing of the air-chamber into compartments 25 26 27 by the intermediate smoke-fines, the sides of which constitute the Walls of the air-compartments, gives the largest area of heatingsnrfaces and largely increases the utility of the apparatus. It will also be seen that while air only7 is spoken of in the descriptive .part hereof the same apparatus can be used for lhot-water or steam heating.

It will be seen that the slide 11 regulates the amount of cold air owing through the tubes 9, so that when the usual direct-*draft opening in the ash-pit door is closed and the slide 11 is opened the How of cold air into the combustion-cham ber in the rear of the bridgewall and through the smoke-dues will operate as a check-draft and be very effective.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a heater, the three vertical parallel walls 2, 8 and 12, the combustion-chamber formed between the inner walls 2, and the smoke-fines 17 and 23 extending from this combustion chamber, combined with the chambers A between the walls 2 and 1'2, the

3o perforated partitions 13 at the top of the chambers A, the hot-air chamber 15 between the walls 2 and 12, the hot-air chamber 25 over the crown-sheet and connecting with the chamber 15, the hot-air chamber 26,-the perforated partition 16 between the chambers 26 and 15, and the hot-air chamber 27 arranged above the chambers 25, 26, and connected therewith, the parts being arranged to operate substantially as shown.

v2. In a heater, the three vertical walls 2, 2,-and 8,`extending parallel with each other, the hot-air chambers formed below the level of the grate, and upon each side thereof, the

'chamber 15 formedbetween the Walls 2 and 

